PDB: 1f9s Compound: platelet factor 4 Classification: CYTOKINE Entry date in PDB: 2003-08-26 Resolution [Å]: 2.38 R-Factor: 0.228

CHAIN: A SWISS-PROT/TREMBL: P02776    KEYWORD: 3D-structure    Chemotaxis    Cytokine    Heparin-binding    Platelet    Signal    SCOP: d.9.1.1 Alpha and beta proteins (a+b)    IL8-like    Interleukin 8-like chemokines    Interleukin 8-like chemokines    Platelet factor 4, PF4    Human (Homo sapiens) GO:  extracellular region    chemokine activity    cytokine activity    immune response    CHAIN: B SWISS-PROT/TREMBL: P02776    KEYWORD: 3D-structure    Chemotaxis    Cytokine    Heparin-binding    Platelet    Signal    SCOP: d.9.1.1 Alpha and beta proteins (a+b)    IL8-like    Interleukin 8-like chemokines    Interleukin 8-like chemokines    Platelet factor 4, PF4    Human (Homo sapiens) GO:  extracellular region    chemokine activity    cytokine activity    immune response    CHAIN: C SWISS-PROT/TREMBL: P02776    KEYWORD: 3D-structure    Chemotaxis    Cytokine    Heparin-binding    Platelet    Signal    SCOP: d.9.1.1 Alpha and beta proteins (a+b)    IL8-like    Interleukin 8-like chemokines    Interleukin 8-like chemokines    Platelet factor 4, PF4    Human (Homo sapiens) GO:  extracellular region    chemokine activity    cytokine activity    immune response    CHAIN: D SWISS-PROT/TREMBL: P02776    KEYWORD: 3D-structure    Chemotaxis    Cytokine    Heparin-binding    Platelet    Signal    SCOP: d.9.1.1 Alpha and beta proteins (a+b)    IL8-like    Interleukin 8-like chemokines    Interleukin 8-like chemokines    Platelet factor 4, PF4    Human (Homo sapiens) GO:  extracellular region    chemokine activity    cytokine activity    immune response

Image Source: PDB

1f9q A - percentage of sequence identity: 98
1f9r A - percentage of sequence identity: 94
1plf A - percentage of sequence identity: 72